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经营范围
发明名称
Improvements in or relating to soft seating valves
摘要
申请公布号
GB2091389(A)
申请公布日期
1982.07.28
申请号
GB19820000930
申请日期
1982.01.13
申请人
WATERFIELD ENGINEERING LTD
发明人
分类号
F16K7/12;F16K43/00;(IPC1-7):F16K7/00
主分类号
F16K7/12
代理机构
代理人
主权项
地址
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